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R. GILLMAN. Bolsters for Spinning-Spindles.

Patented Jan. 20, 1880.

71- ZZneJwar; @447 UNITED STATES PATENT OFFICE.

RICHARD GZILLMAN, OF LOWELL, -MASSACHUSETTS; SAMUEL H. SEWARD,ADMINISTRATOR OF THE ESTATE OF RICHARD GILLMAN, DECEASED.

BOL STER FOR SPINNING-SPINDLES.

SPECIFICATION forming part of Letters Patent No. 223,724, dated January20, 1880.

Application filed July 30, 1879.

To all whom it may concern:

Be it known that I, RICHARD GILLMAN, of Lowell, in the county ofMiddlcsex and State of Massachusetts, have invented certain new anduseful Improvements in Bolsters for Spinhing-Spindles; and I do herebydeclare that the followingis afull, clear, and exact description of theinvention, which will enable others skilled in the art to which itappertains to made and use the same, reference being had to theaccompanying drawings, which form a part of this specification.

Figure l is a side view. Fig. 2 is a vertical central sectional view,and Fig. 3 is a horizontal section on the line a: m of Fig. 1.

Corresponding parts in the several figures are denoted by like lettersof reference.

This invention relates to bolsters of selfoiling spindles, moreespecially for spinning frames, jacks, and mules; and it consists incertain improvements in the construction of the same, which will behereinafter fully described, and particularly pointed out in the claim.

In the drawings hereto annexed, A represents the spindle, which may beof any suitable construction, and is journaled in the step B and bolsterC, to both of which my invention is applicable, although I shalldescribe it in connection with the bolster only. The latter, like thestep 13, is secured in its rail by a setscrew, E, or other suitablemeans.

The lower end of the bolster is provided with a permanent shank, F, at ashort distance above the upper termination of which it is swelled, so asto form a chamber, H, having at its upper end an opening of sufficientsize to receive a loose bushing, G, extending downward to the top ofshank F, and forming with the latter the bearing for the spindle.

At its upper end the bushing G is provided with a flange, I, coveringthe top of the cylindrical chamber H. The latter, which forms theoil-chamber, is fed through an opening, J, in its top, access to whichis had through a 5 notch, K, in flange I, which may be turned so as tobring the notch K over the opening J. A pin, L, fitted in the top of theoil-chamber, beside the opening J, confines the motion of the movablebushing, as shown.

In operation, the oil escapes from the chamber H to the spindle bearingbetween the shank F and bushing G, the rotary motion of the spindlehaving a tendency to draw the oil from the chamber insufficient quantityto lubricate the bearing. When the spindle is at rest the escape of oilis'preveuted by the flange I of bushing G, which forms a coversufficiently tight for this purpose.

If desirable or necessary, one or more small notches may be cut in thelower end of the movable bushing, thereby permitting the oil to escapemore freely.

Having thus described my invention, I claim and desire to secure byLetters Patent of the United States-- The combination, with the bolster0, having the shank F and the oil-chamber H, the top of which isprovided with opening J and 'pin L, of the loose bushing G, having notchK, arranged and operatingsubstantially as here in described, and for thepurpose shown and specified.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in presence of two witnesses.

RICHARD GILLMAN.

Witnesses:

FREDERICK LAWTON, ELI STANDEVEN.

